Improvement in oil-ejectors



A. BREAR. OIL EJBGTGR. Patented May 2B, 1865` ings, forming i UNITED STATES PATENT OFFICE,

ABEL BREAfR. 0F SAU'GATCK. CONNECTICUT. i

|'M PRovEMl-:N'r VIN 4en -E.JEOToFeS.

Specification forming part of Letters Patent No. 47,793, dated May 23, 1865.

To @ZZ whom, it 17mg concern:

Beit known 'that I, ABEL BEEAR, of Sau gatuck, in the county of Faireld and State ot Connecticut, have invented a new and useful Improvement' in Ejectors for Raising Cil from Vellsand for other Purposes; and I do hereby declare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawpart of `this specification, in whichi Figure l is a cent-ralvertical section of an injector constructed according to my inven-V tion, showing it applied in an oil-well. Fig. 2 isa horizontal section ofthe ejector in the plane indicated by the line .rx in Fig. 1.

Similar letters of reference indicate corresponding parts in both figures.

The oil-,tube of the ejector-s now in common use for raising the oil from oilwells is very liable to be clogged by 4,the paraiiine which exists in the oil becoming congealed by the cooling iniuence ot' the water which is present in the well, and which, with the arrangements ot the oil and blast tubes heretofore adopted, is iu immediate contact with the oiltube.

'lf-he object ol' my invention is to protect the oi1-1ubc from the cooling influence ol' the water, and to render or keep fthe oil limpid while being forced up from the well; and to this end it consist-s, principally, in the arrangement ot' the 0ilpipe within the blastpipe, so that the latter, with its contained air, steam, or gas, l'orms a proteeti 11g-jacket to the oiltube. i

To enable others skilled in the art to apply myinvention'to use, l'. -will proceed' to describe it with reference to the drawings.

A is the lower mouth piece or socket of' the ejector, having a vertical central passage, a, extending directly through it, and having provided around the upper part of `the said cen-V tral passage an annular cavity, b, which is open at thc top, but closed at the bottom, exf cept at c, where it communicates with a turnedup nozzle, c, the mouth of Whichis concentric with the central passage, a..

B is the oil-tube, having its lower lend screwed tightly into the upper part of the central passage, a., ofthe socket C is the blast-tube surrounding the oil-tube and of sufficiently larger .carliber to leave be- `ween the two an annular p" ssage, d, of suiicient size for the blast. Thistube is screwed tightly into a female threadcut around the outer si des of the cavity b. The upper endlof the said tube has screwed tightly onto it a socket, D, at the top of which is a stuffing-box, E, through which the oil-tube passes, the -said stufngbox making a tight joint between the upper parts of the two tubes and providing for their unequal expansion and contraction. In one side of the socket D is lan opening, f, for the connection of the blast-pipe. The tubes B C are oi such length that the lower socket or mouthpiece, A, may be immersed to a' suitand the upper socket, D, be at a suitable distance above ground- The operation is as follows: VThe steam, air, ,or otherV gaseous body by the pressure of iLhQh the oil isto Abe rais'd,--being admitted throughthe opening f to the socket l), de. scends theblastqtuhe C to the cavity b in the lower socket, A, and, passing through the opening c and nozzle c, forces up the oil through the tube B, which, being surrounded by the jacket of air or steam in the annular space d ,between the'said tube and the tube C, is protected from the cooling influence of the water in the well. lf steam were admitted oi' course warm t-he tube B; or if, as is the common practice, compressed air be used for the blast through the tube C, the increased temperature given to the air by the compression will have a similar warming effect on the tube l, and the parafiine will thereby be pre- 'vented from congealing and clogging the said tube, and the oil be kept lirnpid7 so 'that it will flow freely upward. l

l do not claim the use of steam or com-` pressed air for elevating oil or other liquids. That I claim as my invention, and desire to secure by Letters Patent, is

- In combination with my arrangement of the oil or discharge tube and the blast-tube of an ejector, the lower socket, A, constructed with a central passage, a, right through it, and with passage, and communicating with the nozzle tially as and for the purpose herein specified.

' ABEL BREAR. Witnesses:

BENE-YT. BROWN, GEO. W. REED.

able depth4 in the oil at the bottoni of the well,

through the tube Cto force up the oil, it would an annular cavity, b, surrounding the said` c, arranged within the said passage, substan- 

